larrys_script module

Multi-resolution filtering of radio images technique described in Rudnick, 2002 https://iopscience.iop.org/article/10.1086/342499/pdf larry@umn.edu – please contact for assistance, as needed code below courtesy of Viral Parekh, SARAO , vparekh@ska.ac.za

technique creates a diffuse emission map, called “open”; for small scale features, filtered = original_map - open

• pick a box size 3x the beam-size or 3x size of features you want to remove

• open map has an offset zero level - determine it and correct

• open map is at original resolution - units are the same in Jy/beam

• open map will show sharp edges to diffuse regions, but is boxy; convolve for aesthetics

tw_source_finder.larrys_script.check_array(data)

tw_source_finder.larrys_script.generate_morphology_images(argv)

tw_source_finder.larrys_script.main(argv)